RUBBER COMPOUND AND PNEUMATIC TIRE WITH USED IN TREAD MENTIONED COMPOUND Russian patent published in 2008 - IPC C08L21/00 C08K3/36 B60C1/00 

FIELD: process.

SUBSTANCE: invention concerns rubber compound and pneumatic tire, tread of which is made of this rubber compound. Rubber compound includes from 15 till 100 weight fractions of sol chain silicon dioxide, dispersed in isopropanol, possessing average aspect ratio L₁/D between branched particles A-A, containing branched particles A in the range of from 3 till 30, from 1 till 20 weight fractions of silaned bonding agent for 100 weight fractions of rubber component, containing diene rubber, vulcanising agent, such as sulphur, and vulcanisation accelerator, where L₁ corresponds average distance between branched particles A-A, containing branched particles A, and D corresponds effective diameter of primary particle. At that mentioned particle A corresponds particle, which is contacted at least by three other particles.

EFFECT: improvement of adhesion characteristic with wet and dry road surface at holding of rolling resistance characteristic.

3 cl, 2 dwg, 2 tbl, 2 ex